'I have your nudes and everything needed to ruin your life'. This chilling message was received on social media by US teenager Evan Boettler, from someone he had previously believed to be a young girl - in fact, it was a cyber-scammer. Just 90 minutes after receiving the first message, the 16-year-old took his own life. Sextortion - sexual extortion - is one of the fastest-growing online crimes. Victims - often teenagers in the US and Europe - are tricked into sending intimate photos or videos, which the scammers threaten to pass on unless they are paid. When they finally told us that night that he was gone, it didn't make any sense. I don't understand how this could happen to our family, says Evan's mother Kari. In the Missouri home she shares with Evan's father Brad, she describes their son as a bright, funny teenager who loved to fish, play sport and hunt. Their search for justice remains frustrating with social media platforms and law enforcement making little progress. Investigations led to Nigeria, revealing a network of fraudsters known as 'Yahoo Boys' who use elaborate scams to prey on unsuspecting victims. This deep dive into the world of sextortion reveals not just the personal toll but also the systemic flaws that allow such crimes to flourish. With thousands of reports flooding in, parents and advocates are left questioning the efficacy of response from social media companies and law enforcement, resulting in ongoing calls for change to protect vulnerable teenagers online.